Carrera de Biotecnología
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Item Caracterización nanoscópica superficial y fisicoquímica de películas basadas en almidón de diferentes variedades de Ullucus Tuberosus utilizando sorbitol y glicerol(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Biotecnología, 2024-08) Acosta Camino, José Javier; Casado Rojo, SantiagoThis work was aimed at the creation of biomaterials. From the bioplastics generated based on meloco starch, it was determined that the more percentage of plasticizer, the lower the rigidity and resistance of the material, but the higher flexibility and deformation at maximum stress. Regarding the interaction with water, the biofilms with higher plasticizer concentration showed higher permeability. Concerning the solubility and moisture content tests, the values were dependent on the percentage of plasticizer, revealing lower values when using sorbitol as plasticizer. Optical tests found that, as the plasticizer concentration increased, the opacity values increased. Regarding the images obtained using the atomic force microscope, the topography showed differences in the films’ corrugation at different plasticizer concentrations, as well as contrasts at the amplitude and phase measurements. Those films with sorbitol and without plasticizer showed a more homogeneous structure, progressively increasing the appearance of oval morphologies as the amount of plasticizer is increased. Fourier Transform Infrared Spectroscopy with Attenuated Total Reflectance (ATR-FTIR) revealed slightly different spectra, depending on the type of plasticizer and variety of melloco in the generated films. All this characterization was carried out whit the aim of exploring its possible use as an alternative to conventional plastics.